Birmingham, Ala., April 16. - The mine situation threatens to becoine serious as the result of the strike of the 8,000 men Saturday. It is said that the operat ra will attenipt to put negro labor ia the Blue Creek mines and race trouble may result. At the request of the operators Sheriff Morrow sent a strong posse of well armed deputies to Blue Creek to quell any disturbanee that may oucur when the negroes pro to work. It is learned that the rnilitia have been given orders to provide themselves with 40,000 rounds of ammunition and be ready in case of cali. The situation is threatening, to say the least, and the authorities are on the alert. At meetings held at the several mines the strikers resolved to stand firm. "